ALAMEDA CREEK - NILES (NILC1)
Latitude: 37.59º NLongitude: 121.96º WElevation: 86 FeetForecast Type: Unofficial Location
Location: Alameda County in CaliforniaBulletin Group: Central CoastRiver Group: South Bay
Issuance Time: Oct 31 2026 at 8:50 AM PDTNext Issuance: Nov 01 2026 at 9:00 AM PST
Action: N/A Minor Flood: 9.0 FeetModerate Flood: 10.5 FeetMajor Flood: N/A

# Tabular Observed and Forecast Hydrograph Information
#
# Location: Alameda Creek - Niles (NILC1)
#
# File Generation Time:  10/31/2026 at 08:51 AM PDT
# Data Interval:  1 Hour
#
# Most Recent Date & Time of Maximum Observed:  10/27/2026 at 04:00 PM PDT
# Maximum Observed Stage:                       2.88 Feet
# Maximum Observed Flow:                        28 cfs
#
# Earliest Date & Time of Maximum Forecast:     11/01/2026 at 04:00 PM PST
# Maximum Forecast Stage:                       3.23 Feet
# Maximum Forecast Flow:                        68 cfs
#
# OBSERVED
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Observed Status
# ---------------------------------------------------------------------------------
  10/26/2026 08 AM PDT            2.84             25                        Normal
  10/26/2026 09 AM PDT            2.84             25         0              Normal
  10/26/2026 10 AM PDT            2.85             26         +              Normal
  10/26/2026 11 AM PDT            2.85             26         0              Normal
  10/26/2026 12 PM PDT            2.85             26         0              Normal
  10/26/2026 01 PM PDT            2.86             26         +              Normal
  10/26/2026 02 PM PDT            2.87             27         +              Normal
  10/26/2026 03 PM PDT            2.87             27         0              Normal
  10/26/2026 04 PM PDT            2.85             26         -              Normal
  10/26/2026 05 PM PDT            2.85             26         0              Normal
  10/26/2026 06 PM PDT            2.83             24         -              Normal
  10/26/2026 07 PM PDT            2.81             23         -              Normal
  10/26/2026 08 PM PDT            2.77             20         -              Normal
  10/26/2026 09 PM PDT            2.74             18         -              Normal
  10/26/2026 10 PM PDT            2.71             17         -              Normal
  10/26/2026 11 PM PDT            2.69             16         -              Normal
  10/27/2026 12 AM PDT            2.67             15         -              Normal
  10/27/2026 01 AM PDT            2.66             14         -              Normal
  10/27/2026 02 AM PDT            2.66             14         0              Normal
  10/27/2026 03 AM PDT            2.68             15         +              Normal
  10/27/2026 04 AM PDT            2.79             21         +              Normal
  10/27/2026 05 AM PDT            2.83             24         +              Normal
  10/27/2026 06 AM PDT            2.84             25         +              Normal
  10/27/2026 07 AM PDT            2.84             25         0              Normal
  10/27/2026 08 AM PDT            2.84             25         0              Normal
  10/27/2026 09 AM PDT            2.84             25         0              Normal
  10/27/2026 10 AM PDT            2.84             25         0              Normal
  10/27/2026 11 AM PDT            2.84             25         0              Normal
  10/27/2026 12 PM PDT            2.84             25         0              Normal
  10/27/2026 01 PM PDT            2.85             26         +              Normal
  10/27/2026 02 PM PDT            2.86             26         +              Normal
  10/27/2026 03 PM PDT            2.87             27         +              Normal
  10/27/2026 04 PM PDT            2.88             28         +              Normal
  10/27/2026 05 PM PDT            2.87             27         -              Normal
  10/27/2026 06 PM PDT            2.85             26         -              Normal
  10/27/2026 07 PM PDT            2.82             24         -              Normal
  10/27/2026 08 PM PDT            2.78             21         -              Normal
  10/27/2026 09 PM PDT            2.74             18         -              Normal
  10/27/2026 10 PM PDT            2.71             17         -              Normal
  10/27/2026 11 PM PDT            2.69             16         -              Normal
  10/28/2026 12 AM PDT            2.67             15         -              Normal
  10/28/2026 01 AM PDT            2.66             14         -              Normal
  10/28/2026 02 AM PDT            2.66             14         0              Normal
  10/28/2026 03 AM PDT            2.69             16         +              Normal
  10/28/2026 04 AM PDT            2.79             21         +              Normal
  10/28/2026 05 AM PDT            2.82             24         +              Normal
  10/28/2026 06 AM PDT            2.83             24         +              Normal
  10/28/2026 07 AM PDT            2.84             25         +              Normal
  10/28/2026 08 AM PDT            2.84             25         0              Normal
  10/28/2026 09 AM PDT            2.83             24         -              Normal
  10/28/2026 10 AM PDT            2.80             22         -              Normal
  10/28/2026 11 AM PDT            2.77             20         -              Normal
  10/28/2026 12 PM PDT            2.75             19         -              Normal
  10/28/2026 01 PM PDT            2.73             18         -              Normal
  10/28/2026 02 PM PDT            2.71             17         -              Normal
  10/28/2026 03 PM PDT            2.69             16         -              Normal
  10/28/2026 04 PM PDT            2.68             15         -              Normal
  10/28/2026 05 PM PDT            2.66             14         -              Normal
  10/28/2026 06 PM PDT            2.65             14         -              Normal
  10/28/2026 07 PM PDT            2.65             14         0              Normal
  10/28/2026 08 PM PDT            2.65             14         0              Normal
  10/28/2026 09 PM PDT            2.65             14         0              Normal
  10/28/2026 10 PM PDT            2.65             14         0              Normal
  10/28/2026 11 PM PDT            2.67             15         +              Normal
  10/29/2026 12 AM PDT            2.67             15         0              Normal
  10/29/2026 01 AM PDT            2.67             15         0              Normal
  10/29/2026 02 AM PDT            2.65             14         -              Normal
  10/29/2026 03 AM PDT            2.65             14         0              Normal
  10/29/2026 04 AM PDT            2.65             14         0              Normal
  10/29/2026 05 AM PDT            2.67             15         +              Normal
  10/29/2026 06 AM PDT            2.70             16         +              Normal
  10/29/2026 07 AM PDT            2.71             17         +              Normal
  10/29/2026 08 AM PDT            2.71             17         0              Normal
  10/29/2026 09 AM PDT            2.71             17         0              Normal
  10/29/2026 10 AM PDT            2.72             17         +              Normal
  10/29/2026 11 AM PDT            2.72             17         0              Normal
  10/29/2026 12 PM PDT            2.72             17         0              Normal
  10/29/2026 01 PM PDT            2.71             17         -              Normal
  10/29/2026 02 PM PDT            2.71             17         0              Normal
  10/29/2026 03 PM PDT            2.70             16         -              Normal
  10/29/2026 04 PM PDT            2.71             17         +              Normal
  10/29/2026 05 PM PDT            2.71             17         0              Normal
  10/29/2026 06 PM PDT            2.72             17         +              Normal
  10/29/2026 07 PM PDT            2.73             18         +              Normal
  10/29/2026 08 PM PDT            2.73             18         0              Normal
  10/29/2026 09 PM PDT            2.74             18         +              Normal
  10/29/2026 10 PM PDT            2.72             17         -              Normal
  10/29/2026 11 PM PDT            2.70             16         -              Normal
  10/30/2026 12 AM PDT            2.69             16         -              Normal
  10/30/2026 01 AM PDT            2.67             15         -              Normal
  10/30/2026 02 AM PDT            2.66             14         -              Normal
  10/30/2026 03 AM PDT            2.65             14         -              Normal
  10/30/2026 04 AM PDT            2.66             14         +              Normal
  10/30/2026 05 AM PDT            2.69             16         +              Normal
  10/30/2026 06 AM PDT            2.71             17         +              Normal
  10/30/2026 07 AM PDT            2.72             17         +              Normal
  10/30/2026 08 AM PDT            2.72             17         0              Normal
  10/30/2026 09 AM PDT            2.72             17         0              Normal
  10/30/2026 10 AM PDT            2.72             17         0              Normal
  10/30/2026 11 AM PDT            2.73             18         +              Normal
  10/30/2026 12 PM PDT            2.73             18         0              Normal
  10/30/2026 01 PM PDT            2.73             18         0              Normal
  10/30/2026 02 PM PDT            2.74             18         +              Normal
  10/30/2026 03 PM PDT            2.76             20         +              Normal
  10/30/2026 04 PM PDT            2.77             20         +              Normal
  10/30/2026 05 PM PDT            2.77             20         0              Normal
  10/30/2026 06 PM PDT            2.78             21         +              Normal
  10/30/2026 07 PM PDT            2.77             20         -              Normal
  10/30/2026 08 PM PDT            2.75             19         -              Normal
  10/30/2026 09 PM PDT            2.72             17         -              Normal
  10/30/2026 10 PM PDT            2.70             16         -              Normal
  10/30/2026 11 PM PDT            2.68             15         -              Normal
  10/31/2026 12 AM PDT            2.66             14         -              Normal
  10/31/2026 01 AM PDT            2.65             14         -              Normal
  10/31/2026 02 AM PDT            2.64             13         -              Normal
  10/31/2026 03 AM PDT            2.64             13         0              Normal
  10/31/2026 04 AM PDT            2.64             13         0              Normal
  10/31/2026 05 AM PDT            2.64             13         0              Normal
  10/31/2026 06 AM PDT            2.65             14         +              Normal
  10/31/2026 07 AM PDT            2.67             15         +              Normal
  10/31/2026 08 AM PDT            2.67             15         0              Normal
#
# FORECAST
#
# Date & Time  (Local)    Stage (Feet)     Flow (cfs)     Trend     Forecast Status
# ---------------------------------------------------------------------------------
  10/31/2026 09 AM PDT            2.68             15                        Normal
  10/31/2026 10 AM PDT            2.69             16         +              Normal
  10/31/2026 11 AM PDT            2.70             16         +              Normal
  10/31/2026 12 PM PDT            2.69             16         -              Normal
  10/31/2026 01 PM PDT            2.69             16         0              Normal
  10/31/2026 02 PM PDT            2.69             16         0              Normal
  10/31/2026 03 PM PDT            2.68             15         -              Normal
  10/31/2026 04 PM PDT            2.68             15         0              Normal
  10/31/2026 05 PM PDT            2.68             15         0              Normal
  10/31/2026 06 PM PDT            2.67             15         -              Normal
  10/31/2026 07 PM PDT            2.67             15         0              Normal
  10/31/2026 08 PM PDT            2.67             15         0              Normal
  10/31/2026 09 PM PDT            2.67             15         0              Normal
  10/31/2026 10 PM PDT            2.67             15         0              Normal
  10/31/2026 11 PM PDT            2.66             14         -              Normal
  11/01/2026 12 AM PDT            2.66             14         0              Normal
  11/01/2026 01 AM PDT            2.66             14         0              Normal
  11/01/2026 01 AM PST            2.66             14         0              Normal
  11/01/2026 02 AM PST            2.65             14         -              Normal
  11/01/2026 03 AM PST            2.65             14         0              Normal
  11/01/2026 04 AM PST            2.65             14         0              Normal
  11/01/2026 05 AM PST            2.66             14         +              Normal
  11/01/2026 06 AM PST            2.67             15         +              Normal
  11/01/2026 07 AM PST            2.71             17         +              Normal
  11/01/2026 08 AM PST            2.77             20         +              Normal
  11/01/2026 09 AM PST            2.86             26         +              Normal
  11/01/2026 10 AM PST            2.95             34         +              Normal
  11/01/2026 11 AM PST            3.02             41         +              Normal
  11/01/2026 12 PM PST            3.09             49         +              Normal
  11/01/2026 01 PM PST            3.15             56         +              Normal
  11/01/2026 02 PM PST            3.19             62         +              Normal
  11/01/2026 03 PM PST            3.22             66         +              Normal
  11/01/2026 04 PM PST            3.23             68         +              Normal
  11/01/2026 05 PM PST            3.22             66         -              Normal
  11/01/2026 06 PM PST            3.20             63         -              Normal
  11/01/2026 07 PM PST            3.17             59         -              Normal
  11/01/2026 08 PM PST            3.14             55         -              Normal
  11/01/2026 09 PM PST            3.11             51         -              Normal
  11/01/2026 10 PM PST            3.07             46         -              Normal
  11/01/2026 11 PM PST            3.02             41         -              Normal
  11/02/2026 12 AM PST            2.98             37         -              Normal
  11/02/2026 01 AM PST            2.94             33         -              Normal
  11/02/2026 02 AM PST            2.90             30         -              Normal
  11/02/2026 03 AM PST            2.87             27         -              Normal
  11/02/2026 04 AM PST            2.84             25         -              Normal
  11/02/2026 05 AM PST            2.81             23         -              Normal
  11/02/2026 06 AM PST            2.78             21         -              Normal
  11/02/2026 07 AM PST            2.76             20         -              Normal
  11/02/2026 08 AM PST            2.73             18         -              Normal
  11/02/2026 09 AM PST            2.71             17         -              Normal
  11/02/2026 10 AM PST            2.69             16         -              Normal
  11/02/2026 11 AM PST            2.67             15         -              Normal
  11/02/2026 12 PM PST            2.65             14         -              Normal
  11/02/2026 01 PM PST            2.64             13         -              Normal
  11/02/2026 02 PM PST            2.63             13         -              Normal
  11/02/2026 03 PM PST            2.62             12         -              Normal
  11/02/2026 04 PM PST            2.60             11         -              Normal
  11/02/2026 05 PM PST            2.60             11         0              Normal
  11/02/2026 06 PM PST            2.59             11         -              Normal
  11/02/2026 07 PM PST            2.58             10         -              Normal
  11/02/2026 08 PM PST            2.58             10         0              Normal
  11/02/2026 09 PM PST            2.57             10         -              Normal
  11/02/2026 10 PM PST            2.57             10         0              Normal
  11/02/2026 11 PM PST            2.57             10         0              Normal
  11/03/2026 12 AM PST            2.57             10         0              Normal
  11/03/2026 01 AM PST            2.56             10         -              Normal
  11/03/2026 02 AM PST            2.56             10         0              Normal
  11/03/2026 03 AM PST            2.56             10         0              Normal
  11/03/2026 04 AM PST            2.56             10         0              Normal
  11/03/2026 05 AM PST            2.56             10         0              Normal
  11/03/2026 06 AM PST            2.56             10         0              Normal
  11/03/2026 07 AM PST            2.56             10         0              Normal
  11/03/2026 08 AM PST            2.56             10         0              Normal
  11/03/2026 09 AM PST            2.56             10         0              Normal
  11/03/2026 10 AM PST            2.56             10         0              Normal
  11/03/2026 11 AM PST            2.56             10         0              Normal
  11/03/2026 12 PM PST            2.56             10         0              Normal
  11/03/2026 01 PM PST            2.56             10         0              Normal
  11/03/2026 02 PM PST            2.56             10         0              Normal
  11/03/2026 03 PM PST            2.56             10         0              Normal
  11/03/2026 04 PM PST            2.56             10         0              Normal
  11/03/2026 05 PM PST            2.56             10         0              Normal
  11/03/2026 06 PM PST            2.56             10         0              Normal
  11/03/2026 07 PM PST            2.56             10         0              Normal
  11/03/2026 08 PM PST            2.56             10         0              Normal
  11/03/2026 09 PM PST            2.56             10         0              Normal
  11/03/2026 10 PM PST            2.56             10         0              Normal
  11/03/2026 11 PM PST            2.58             10         +              Normal
  11/04/2026 12 AM PST            2.62             12         +              Normal
  11/04/2026 01 AM PST            2.67             15         +              Normal
  11/04/2026 02 AM PST            2.72             17         +              Normal
  11/04/2026 03 AM PST            2.77             20         +              Normal
  11/04/2026 04 AM PST            2.81             23         +              Normal
  11/04/2026 05 AM PST            2.85             26         +              Normal
  11/04/2026 06 AM PST            2.87             27         +              Normal
  11/04/2026 07 AM PST            2.89             29         +              Normal
  11/04/2026 08 AM PST            2.89             29         0              Normal
  11/04/2026 09 AM PST            2.89             29         0              Normal
  11/04/2026 10 AM PST            2.88             28         -              Normal
  11/04/2026 11 AM PST            2.87             27         -              Normal
  11/04/2026 12 PM PST            2.85             26         -              Normal
  11/04/2026 01 PM PST            2.83             24         -              Normal
  11/04/2026 02 PM PST            2.81             23         -              Normal
  11/04/2026 03 PM PST            2.79             21         -              Normal
  11/04/2026 04 PM PST            2.77             20         -              Normal
  11/04/2026 05 PM PST            2.75             19         -              Normal
  11/04/2026 06 PM PST            2.73             18         -              Normal
  11/04/2026 07 PM PST            2.72             17         -              Normal
  11/04/2026 08 PM PST            2.70             16         -              Normal
  11/04/2026 09 PM PST            2.68             15         -              Normal
  11/04/2026 10 PM PST            2.66             14         -              Normal
  11/04/2026 11 PM PST            2.64             13         -              Normal
  11/05/2026 12 AM PST            2.63             13         -              Normal
  11/05/2026 01 AM PST            2.62             12         -              Normal
  11/05/2026 02 AM PST            2.60             11         -              Normal
  11/05/2026 03 AM PST            2.60             11         0              Normal
  11/05/2026 04 AM PST            2.59             11         -              Normal
#
# NOTE 1: Stages are rounded to the nearest hundredth (.01) of a foot.
# NOTE 2: Flows are rounded to the nearest (1) cfs.
# NOTE 3: Trends are determined using hourly change in unrounded stage and flow.
# NOTE 4: Maximum Values are determined using unrounded stage and flow.